Question: tell me hydroxide salts  starts with h
Paraphrase: Which hydroxide salts begin with letter h?
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q425597 . ?sbj rdfs:label ?sbj_label . FILTER(STRSTARTS(lcase(?sbj_label), 'h')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25